-
公开(公告)号:EP2900910A1
公开(公告)日:2015-08-05
申请号:EP12787942.7
申请日:2012-10-11
CPC分类号: G01V3/26 , E21B43/26 , E21B47/026 , E21B47/09 , E21B47/0905 , E21B47/1015
摘要: A fracture sensing system and method is disclosed herein. The method may include positioning a transmitter and a receiver in a borehole and magnetizing a casing disposed within the borehole to magnetically saturate the casing. The transmitter and receiver may be located inside or outside of the casing. The method may also include inducing with the transmitter an electromagnetic field in a formation surrounding the borehole. The method may also comprise receiving the induced electromagnetic field at the receiver. The induced electromagnetic field may identify a fracture within the formation based, at least in part, on a contrast agent within the fracture.